I watched KJ play in person a couple times while he was at Clemson. Dude is a freak athlete. He's only 21 and is kind of a poor man's MKG (and he has a better jump shot). At 6'6 he's kind of undersized but his length and athleticism make up for it. He wouldn't spread the floor for us much but he would definitely help on the defensive end, where our perimeter defense could use some help.
He has shown frustration for lack of playing time on the Sixers, though I'm not sure if he is on the rebuilding train or not (most players aren't).
EDIT: (sauce):
http://www.nj.com/sixers/index.ssf/2...ying_time.html